Boring and mortising implement



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Patented Apr. 14, 1891.

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C. REED. BORING AND MORTISING IMPLEMENT.

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(No Model.)

C. REED. BORING AND MORTISING IMPLBMBNT.

Patented'Apr. 14, 1891.

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vBORING AND IVIORTISING INIPLEIVIENT'.

SPECIFICATION forming part of Letters Patent N0. 450,338, dated April` 14, 1891.

Application filed March 17.1890. Serial No. 344,109. (No model.)

To all whom it may concern:

Be it known that I, CHARLES REED, a ein! zen of the United States, residing at Chillicothe, Ross county, Ohio, have invented new and useful Improvements in Boring and Mortising Implements, of which the following is a specification.

My invention relates to hand drilling and boring machines, its object being to produce an implement adapted to general use designed, primarily, for boring mortises and recesses in doors, itc., for the placing and insertion of mortise-locks, hinges, ttc., and for tenoning the frames ot doors, shutters, dac. It may also be used for drilling metal in many situations where a series of holes are required.

To this end my invention consists, generally, in a rack-bar or support adapted to be secured to a door or other object, with which is combined a drill or auger carrier with driving and adjusting mechanism, whereby the operations of mortising, recessing, &c., may be conveniently and expeditiously performed.

It also consists in certain details embodying principles of construction and operation of useful application to kindred devices, all of which are hereinafter described, and pointed out in the claims.

A door -mortising implement en ibodying` and illustrating my invention is exhibited in the accompanying drawings, inwhich- Figurelis an end elevation of theimplement complete with section of the door to which it is applied, showing the auger in the mortise made by its opera-tion. Fig. 2 is a plan view of the implement complete, sectioned horizontally through the auger-carrier; Figs. 3 and 4, opposite side elevations of the implement complete, omitting part of the auger-carrier already shown in Fig. l g Fig. 5, a detail axial cross-section of the lower part of the augercarrier, showing the construction and the relative position of the adjusting-wheel, rackbar, and adjusting parts. Fig. G is a detail section of the auger and carrier detached; Fig. 7, a detail view of one of the end clamps or supports for the rack-bar, showing its eccentric seat for lateral adjustment of the mortise to the width of the door or framing.

Referring now to the drawings, in which letters of reference designate the various parts hereinafter described, I may describe the device or implement as consisting of two main parts, to wit: first, the adjustable support, and, second, the boring mechanism adj ustable on said support.

The supporting part of the implement consists of a rack-bar A, adj ustably held in clamps B B, adapted to fit over and upon the door, beam, or piece O. The clamps B are in the usual jaw form, provided with set-screws c, threaded through one of the j aws and preferably bearing against a rubber-faced block b, operating in a socket or recess ot' the jaw in the usual manner of such constructions. The clamps are each extended at one exterior corner into a loop o', each embracing a cylindrical sleeve c, in which an end of the rack-bar A is journaled eccentrically, a setscrew a being provided in the wall of the loop to secure the sleeve c in ultimate positions.

The rack-bar A, I prefer to form, as shown, with equidistant circumferential corrugations or grooves, forming edges or racks for the engagement of a cog-wheelattached to the augercarrier, by which the carrier may be moved in longitudinal relations to the rack-bar A, upon which it is held and guided, all as hereinafter explained.

Each of the sleeves c is at its outer end cut across by a slot for the engagement of a screwdriver, by which it may be rotated for the purpose of moving and adjusting theauger laterally in relation to the door or mortise to be cu't.

The auger-carrier consists of a hollow cylindrical casing D, divided horizontally near the lower end `for the reception of a bevelpinion E, the two parts of t-he casing being connected around said opening by an arm d, which in the vicinity ot the rack-bar A is looped around the same, forming a sliding iit and at the same time a laterally-extended pivotalsupporting-guideandconnection. The vertical web of the arm is suiiiciently enlarged above and adjacent to the rack-bar A to incase avsmall spur-pinion E, meshing with the corrugations or grooves of the said rack-bar. The spur-pinion E is rigidly attached to a piutle f, extending laterally through the walls of IOO its socket or recess and through a rack-plate G, secured at right angles to said pintle to the outside of the arm (l. The pintle f terminates eXteriorly in a cross piece P, extending diametrically across the face ci the plate GA Centrally upon said cross-piece, between suitable lugs, is pivoted a lever-latch Il, extended into a manipulating-handle over and beyond one end of the cross-piece l), from which it is i port. By slightly depressing the handle l-I against its spring, however, its latching end is. held disengaged from the rack-plate G, and by due rotation the boring mechanism is shifted in the proper direction upon its supports.

The lower portion of the casing D, at the side opposite the arm d, is extended downward into a lug D', resting against the side of the door` or piece to be mortised, and carries a stud t', projecting outwardly, upon which is mounted a driving bevel-pinion E', meshing with the pinion E, before referred to, and carrying a hand-crank j for its manipulation.

The casing D carries within it in a close rotating t a hollow sleeve K, extending throughout its length and across the space occupied by the bevel-pinion E, and through the said pinion, which is rigidly attached to it, and causes its rotation when power is given by the driving-pinion E and crank The sleeve K carriesa small pin or stud L, projecting inwardly, as indicated in Fig. 2, near its upper terminus. Within the tube K is carried in a close rotating tit another tube or bar M, which constitutes the mandrel for holding the auger. The tube or bar M is furnished at one side with a longitudinal slot m, engaging the pin or stud Z of the tube K. The upper terminus of the mandrel M projects beyond the casing D, and is provided with a switching-knob m. There is also provided a flanged collar m2, adjustably secured to the mandrel M to bear against the upper edge of the easing D and form a guide-stop, and in a portion of the collar projecting downward within the casing D is formed a circumferential groove, in which engages the end of a thumb-screw m3, threaded through the tube D. This is only used to hold the mandrel rigidly against vertical movement while permitting its free rotation when it is desired to form a shallow depression in the face et' the door, as will be more particularly described. The auger N is held in the lower end of the mandrel by a set-screw or in any other convenient manner.

The operation of the device is as follows: The device being clamped to the door, as indicated, the mandrel M is drawn upward entirely out of its containing casing and fitted with an auger of suitable length to form the mortise, and the gage-collar m2 is set at the proper point and properly secured. The carrier D is then, by means et the handle H aand the pinion F, moved along to the proper point for boring, where it is held by the engagement of the latch or detent in the spaces of the rack-plate G, by which the pinion F is prevented from rotating, and becomes a lock by its engagement with the rack-bar A. The

mandrel is then inserted in its carrier K with its slot rm engaging the pin, and held down upon the wood, when by rotating the driving-pinion F by its handle j the auger 1s caused to enter the wood'as far as permitted by the stop-collar m2. It is then withdrawn and the device moved along the proper distance for a new bore and the operation repeated. It will be seen that the longitudinal bearing of the mandrel M and its holding sleeve in the casing always insures a proper action of the auger in its proper axis as against inequalities in the grain of the wood and other causes, so that holes may be bored side by side or merging into each other, as may be required.

By using an auger without a gimlet-point and properly setting the gage-collar and starting the auger down by pressure upon the knob m and then setting up the thumb-screw ma, the entire carrier may be moved along with one hand, while the rotation of the auger is given with the other, and thus a shallow recess of any desired length between the clamps B may be formed to receive hinges or the projecting spaces of a mortise-lock.

l claim as my invention and desire to secure by Letters Patent of the United Statesl. ln ahand mortising implement, the combination of a supporting rack-bar provided with clamps adapting it to be adj ustably secured to the object to be mortised, an augercarrier provided with operating mechanism and carried on said rack-bar, a spur-wheel j ournaled in said auger-carrier and operating to shift the position of the carrier, and means for rotating or locking said spur-wheel at will, substantially as described.

The combination of the auger-carrier, the rack-bar, the spur-wheel journaled in or upon the carrier and meshing with said rack bar, the circular racl -plate attached to the carrier, and the springdiandle adapted to engage the rack-plate, substantially as set forth.

in a hand mortising implement, the combination of a rack-bar, an auger-carrier supported by said rack-bar, and the adjustable clamps for holdi ng the rack-bar, and the eccentric adjustable sleeves forming the journalseats of the rack-bar in the clamps and enabling the bar to be shifted to laterally adj ust the auger-carrier, substantially as described.

1l. ln a hand mortising implement, the combination of a rack-bar adapted to be clamped' to the work in parallel relations to the saine,

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an auger-carrier carried adjustably on said guide bar and an extension of said carrier downward at the side of the Work and resting against the same for support, and the driving crank wheel carried upon such extension, substantially as set forth.

5. In a mortsing implement, a hollow cylindrical supporting-casing divided across its axis, a tubular driving-guide extended through the casing across said division-space, a bevel-gear occupying said division-space and rigidly centered upon said driving-guide, an auger-mandrel telescoped within said driving-guide and connected therewith by a slot and feather, permitting longitudinal movement but compelling interrotation, and a driving bevel-gear carried at the outside of the casing and meshing with the first-named gear, and a hand-crank connected to such In testimony whereof I have hereunto set my hand in the presence of two subscribing Witnesses.

CHARLES REED.

Witnesses: y

JN0. G. HATHAWAY, LUTHER B. YAPLE. 

